Dental Fluoride supplement for a 3-year old child living in an area with fluoride content of 0.25 ppm is: A 0.25 mg B 0.5 mg C 0.75 mg D 1 mg 💡 Explanation Fluoride supplement for a 3-year old child living in an area with fluoride content of 0.25 ppm is: ✓ Correct Answer: B. 0.5 mg